Please do not iron our PolyBak™ core rockers, they may become damaged if you apply heat to them. REAL BIKER ROCKERS WITH POLYBAK™ CORE BACKING TECHNOLOGY! Click to read more about PolyBak™ core suitable for all weather conditions. If you need a Glue backing so you can Iron on your patch then please advise, but your rocker will not have a Polybak ™ Core if we use a glue backing. Ask us about our new Metallic Thread Options we have available! Can't find the right product on our website? Contact us today, we'll do our best to make it happen for you! Want a custom thread colour that's not shown? Please contact us to discuss your options! We also do double borders, contact us if you would like to add a double coloured border option. If we believe your choice will be uneven or look incorrect in any way, we'll inform you and advise which method will look best. We are professionals and have been making high quality embroidered Patches for over 30 years. WHICH SIZE IS RIGHT? Click to See our blog post to learn about sizing and how we measure width!